diff --git a/aiida/storage/sqlite_zip/orm.py b/aiida/storage/sqlite_zip/orm.py
index 5b7a36182d..211346857d 100644
--- a/aiida/storage/sqlite_zip/orm.py
+++ b/aiida/storage/sqlite_zip/orm.py
@@ -263,14 +263,15 @@ def _cast_json_type(comparator: JSON.Comparator, value: Any) -> Tuple[ColumnElem
             if isinstance(value, (list, dict)):
                 return case((type_filter, casted_entity == func.json(json.dumps(value))), else_=False)
             if isinstance(value, complex):
-                return case(
-                    (type_filter, casted_entity == func.json(json.dumps({
+                return case((
+                    type_filter, casted_entity
+                    == func.json(json.dumps({
                         '__complex__': True,
                         'real': value.real,
                         'imag': value.imag
-                    }))),
-                    else_=False
-                )
+                    }))
+                ),
+                            else_=False)
             # to-do not working for dict
             return case((type_filter, casted_entity == value), else_=False)
         if operator == '>':
diff --git a/tests/orm/nodes/test_node.py b/tests/orm/nodes/test_node.py
index 9c4a4da44c..be85c9480d 100644
--- a/tests/orm/nodes/test_node.py
+++ b/tests/orm/nodes/test_node.py
@@ -474,11 +474,11 @@ def test_attribute_complex(self):
         self.node.store()
         # ensure the returned node is a complex number
         assert self.node.base.attributes.get('a_val') == 1.1 + 2.1j
-    
+
     def test_extra_complex(self):
         """Test that the `Node.set_attribute` method supports complex."""
         self.node.base.extras.set('a_val', 1.1 + 2.1j)
-        self.node.store() #Only when stored the complex number is serialized
+        self.node.store()  #Only when stored the complex number is serialized
         # ensure the returned node is a complex number
         assert self.node.base.extras.get('a_val') == 1.1 + 2.1j